TSTP Solution File: NUM027-1 by Prover9---1109a

View Problem - Process Solution

%------------------------------------------------------------------------------
% File     : Prover9---1109a
% Problem  : NUM027-1 : TPTP v8.1.0. Bugfixed v4.0.0.
% Transfm  : none
% Format   : tptp:raw
% Command  : tptp2X_and_run_prover9 %d %s

% Computer : n029.cluster.edu
% Model    : x86_64 x86_64
% CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory   : 8042.1875MB
% OS       : Linux 3.10.0-693.el7.x86_64
% CPULimit : 300s
% WCLimit  : 600s
% DateTime : Mon Jul 18 13:24:45 EDT 2022

% Result   : Unsatisfiable 0.76s 1.05s
% Output   : Refutation 0.76s
% Verified : 
% SZS Type : -

% Comments : 
%------------------------------------------------------------------------------
%----WARNING: Could not form TPTP format derivation
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.07/0.13  % Problem  : NUM027-1 : TPTP v8.1.0. Bugfixed v4.0.0.
% 0.07/0.14  % Command  : tptp2X_and_run_prover9 %d %s
% 0.14/0.35  % Computer : n029.cluster.edu
% 0.14/0.35  % Model    : x86_64 x86_64
% 0.14/0.35  % CPU      : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.14/0.35  % Memory   : 8042.1875MB
% 0.14/0.35  % OS       : Linux 3.10.0-693.el7.x86_64
% 0.14/0.35  % CPULimit : 300
% 0.14/0.35  % WCLimit  : 600
% 0.14/0.35  % DateTime : Wed Jul  6 13:58:13 EDT 2022
% 0.14/0.35  % CPUTime  : 
% 0.76/1.05  ============================== Prover9 ===============================
% 0.76/1.05  Prover9 (32) version 2009-11A, November 2009.
% 0.76/1.05  Process 13689 was started by sandbox2 on n029.cluster.edu,
% 0.76/1.05  Wed Jul  6 13:58:14 2022
% 0.76/1.05  The command was "/export/starexec/sandbox2/solver/bin/prover9 -t 300 -f /tmp/Prover9_13536_n029.cluster.edu".
% 0.76/1.05  ============================== end of head ===========================
% 0.76/1.05  
% 0.76/1.05  ============================== INPUT =================================
% 0.76/1.05  
% 0.76/1.05  % Reading from file /tmp/Prover9_13536_n029.cluster.edu
% 0.76/1.05  
% 0.76/1.05  set(prolog_style_variables).
% 0.76/1.05  set(auto2).
% 0.76/1.05      % set(auto2) -> set(auto).
% 0.76/1.05      % set(auto) -> set(auto_inference).
% 0.76/1.05      % set(auto) -> set(auto_setup).
% 0.76/1.05      % set(auto_setup) -> set(predicate_elim).
% 0.76/1.05      % set(auto_setup) -> assign(eq_defs, unfold).
% 0.76/1.05      % set(auto) -> set(auto_limits).
% 0.76/1.05      % set(auto_limits) -> assign(max_weight, "100.000").
% 0.76/1.05      % set(auto_limits) -> assign(sos_limit, 20000).
% 0.76/1.05      % set(auto) -> set(auto_denials).
% 0.76/1.05      % set(auto) -> set(auto_process).
% 0.76/1.05      % set(auto2) -> assign(new_constants, 1).
% 0.76/1.05      % set(auto2) -> assign(fold_denial_max, 3).
% 0.76/1.05      % set(auto2) -> assign(max_weight, "200.000").
% 0.76/1.05      % set(auto2) -> assign(max_hours, 1).
% 0.76/1.05      % assign(max_hours, 1) -> assign(max_seconds, 3600).
% 0.76/1.05      % set(auto2) -> assign(max_seconds, 0).
% 0.76/1.05      % set(auto2) -> assign(max_minutes, 5).
% 0.76/1.05      % assign(max_minutes, 5) -> assign(max_seconds, 300).
% 0.76/1.05      % set(auto2) -> set(sort_initial_sos).
% 0.76/1.05      % set(auto2) -> assign(sos_limit, -1).
% 0.76/1.05      % set(auto2) -> assign(lrs_ticks, 3000).
% 0.76/1.05      % set(auto2) -> assign(max_megs, 400).
% 0.76/1.05      % set(auto2) -> assign(stats, some).
% 0.76/1.05      % set(auto2) -> clear(echo_input).
% 0.76/1.05      % set(auto2) -> set(quiet).
% 0.76/1.05      % set(auto2) -> clear(print_initial_clauses).
% 0.76/1.05      % set(auto2) -> clear(print_given).
% 0.76/1.05  assign(lrs_ticks,-1).
% 0.76/1.05  assign(sos_limit,10000).
% 0.76/1.05  assign(order,kbo).
% 0.76/1.05  set(lex_order_vars).
% 0.76/1.05  clear(print_given).
% 0.76/1.05  
% 0.76/1.05  % formulas(sos).  % not echoed (21 formulas)
% 0.76/1.05  
% 0.76/1.05  ============================== end of input ==========================
% 0.76/1.05  
% 0.76/1.05  % From the command line: assign(max_seconds, 300).
% 0.76/1.05  
% 0.76/1.05  ============================== PROCESS NON-CLAUSAL FORMULAS ==========
% 0.76/1.05  
% 0.76/1.05  % Formulas that are not ordinary clauses:
% 0.76/1.05  
% 0.76/1.05  ============================== end of process non-clausal formulas ===
% 0.76/1.05  
% 0.76/1.05  ============================== PROCESS INITIAL CLAUSES ===============
% 0.76/1.05  
% 0.76/1.05  ============================== PREDICATE ELIMINATION =================
% 0.76/1.05  
% 0.76/1.05  ============================== end predicate elimination =============
% 0.76/1.05  
% 0.76/1.05  Auto_denials:  (non-Horn, no changes).
% 0.76/1.05  
% 0.76/1.05  Term ordering decisions:
% 0.76/1.05  
% 0.76/1.05  % Assigning unary symbol successor kb_weight 0 and highest precedence (10).
% 0.76/1.05  Function symbol KB weights:  n0=1. c=1. a=1. b=1. multiply=1. add=1. predecessor_of_1st_minus_2nd=1. successor=0.
% 0.76/1.05  
% 0.76/1.05  ============================== end of process initial clauses ========
% 0.76/1.05  
% 0.76/1.05  ============================== CLAUSES FOR SEARCH ====================
% 0.76/1.05  
% 0.76/1.05  ============================== end of clauses for search =============
% 0.76/1.05  
% 0.76/1.05  ============================== SEARCH ================================
% 0.76/1.05  
% 0.76/1.05  % Starting search at 0.01 seconds.
% 0.76/1.05  
% 0.76/1.05  ============================== PROOF =================================
% 0.76/1.05  % SZS status Unsatisfiable
% 0.76/1.05  % SZS output start Refutation
% 0.76/1.05  
% 0.76/1.05  % Proof 1 at 0.04 (+ 0.00) seconds.
% 0.76/1.05  % Length of proof is 15.
% 0.76/1.05  % Level of proof is 4.
% 0.76/1.05  % Maximum clause weight is 13.000.
% 0.76/1.05  % Given clauses 114.
% 0.76/1.05  
% 0.76/1.05  4 less(multiply(b,c),multiply(a,c)) # label(b_times_c_less_than_a_times_c) # label(hypothesis).  [assumption].
% 0.76/1.05  6 less(A,B) | equalish(B,A) | less(B,A) # label(numbers_either_less_or_equal) # label(axiom).  [assumption].
% 0.76/1.05  8 -less(A,A) # label(number_not_less_than_itself) # label(axiom).  [assumption].
% 0.76/1.05  9 -less(b,a) # label(b_not_less_than_a) # label(hypothesis).  [assumption].
% 0.76/1.05  10 -equalish(c,n0) # label(prove_c_is_0) # label(negated_conjecture).  [assumption].
% 0.76/1.05  12 -less(A,B) | -equalish(A,B) # label(not_less_and_equal) # label(axiom).  [assumption].
% 0.76/1.05  16 -less(A,B) | -less(C,A) | less(C,B) # label(transitivity_of_less) # label(axiom).  [assumption].
% 0.76/1.05  19 -equalish(A,B) | equalish(multiply(A,C),multiply(B,C)) # label(equality_preserved_over_times) # label(axiom).  [assumption].
% 0.76/1.05  21 -less(A,B) | equalish(C,n0) | less(multiply(A,C),multiply(B,C)) # label(multiply_lemma) # label(axiom).  [assumption].
% 0.76/1.05  22 less(a,b) | equalish(b,a).  [resolve(9,a,6,c)].
% 0.76/1.05  24 -equalish(multiply(b,c),multiply(a,c)).  [resolve(12,a,4,a)].
% 0.76/1.05  47 -less(multiply(a,c),multiply(b,c)).  [ur(16,b,4,a,c,8,a)].
% 0.76/1.05  115 -equalish(b,a).  [ur(19,b,24,a)].
% 0.76/1.05  124 less(a,b).  [back_unit_del(22),unit_del(b,115)].
% 0.76/1.05  575 $F.  [ur(21,b,10,a,c,47,a),unit_del(a,124)].
% 0.76/1.05  
% 0.76/1.05  % SZS output end Refutation
% 0.76/1.05  ============================== end of proof ==========================
% 0.76/1.05  
% 0.76/1.05  ============================== STATISTICS ============================
% 0.76/1.05  
% 0.76/1.05  Given=114. Generated=1201. Kept=574. proofs=1.
% 0.76/1.05  Usable=111. Sos=436. Demods=0. Limbo=0, Disabled=48. Hints=0.
% 0.76/1.05  Megabytes=0.44.
% 0.76/1.05  User_CPU=0.04, System_CPU=0.00, Wall_clock=0.
% 0.76/1.05  
% 0.76/1.05  ============================== end of statistics =====================
% 0.76/1.05  
% 0.76/1.05  ============================== end of search =========================
% 0.76/1.05  
% 0.76/1.05  THEOREM PROVED
% 0.76/1.05  % SZS status Unsatisfiable
% 0.76/1.05  
% 0.76/1.05  Exiting with 1 proof.
% 0.76/1.05  
% 0.76/1.05  Process 13689 exit (max_proofs) Wed Jul  6 13:58:14 2022
% 0.76/1.05  Prover9 interrupted
%------------------------------------------------------------------------------